NASA NTRS · 19730000497
Mechanical planetary compensating drive system
Abstract
Drive enables two concentric output shafts to be controlled independently or rotated as a unit. Possible uses are pointing and tracking devices, rotary camera shutters with variable light control, gimbal systems with yaw and pitch movement, spectrometer mirror scanning devices, etc.
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Zeiger, R. J., Gerdts, J. C., Jr.. 1973-12-01. Mechanical planetary compensating drive system. https://ntrs.nasa.gov/citations/19730000497
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